Flowserve Bearing Gard User Manual

Bearing gard

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Installation, Operation

and Maintenance Instructions

Bearing Gard

TM

Section 1 - Description of Use

The Bearing Gard is a permanent, non-wearing bearing

protection device used to replace lip seals and simple

labyrinth seals in bearing housings for pumps, motors,

gearboxes and other pieces of rotating equipment. It's

main purpose is to retain lubrication in the bearing

housing and prevent the ingress of contamination as this

can lead to premature failure of the lubrication and

bearings.

Section 2 - Hazzard Summary

To ensure safe and reliable operation of the Bearing

Gard follow all installation, operation, and maintenance

instructions. Failure to comply with these instructions

may result in frictional heating of the Bearing Gard

components and will result in loss in performance.

Section 3 - Preparations for Installation

3.1 Remove the oil seal from the housing.
3.2 Inspect for and remove sharp edges from the

housing bore, keyways, and shaft steps where

Bearing Gard O-rings must pass.

3.3 Thoroughly clean both the shaft and housing bore.
3.4 Ensure Bearing Gard shaft O-ring position is

located on an area of the shaft free from scratches,

nicks, or dings.

3.5 Shaft and housing surface finish must be

0.8 micrometer (32

m

in) or better.

3.6 Concentricity of the housing bore to the shaft must

to be maintained within 0.127 mm (0.005 inch) TIR.

Oil outlet

Contaminant

outlet

Rotor

Housing

Stator

Shaft

Bearing Gard

cross section.

Features vary

by design.

Oil outlet

Contaminant outlet

Top view

Bottom view

Maximum

oil level

To find your local Flowserve representative
and find out more about Flowserve Corporation,
visit www.flowserve.com

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